[
    {
        "BriefDescription": "Cycles weighted by number of requests pending in Coherency Tracker.",
        "EventCode": "0x83",
        "EventName": "UNC_ARB_COH_TRK_OCCUPANCY.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Number of requests allocated in Coherency Tracker.",
        "EventCode": "0x84",
        "EventName": "UNC_ARB_COH_TRK_REQUESTS.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts cycles weighted by the number of requests waiting for data returning from the memory controller. Accounts for coherent and non-coherent requests initiated by IA cores, processor graphic units, or LLC.",
        "EventCode": "0x80",
        "EventName": "UNC_ARB_TRK_OCCUPANCY.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Cycles with at least half of the requests outstanding are waiting for data return from memory controller. Account for coherent and non-coherent requests initiated by IA Cores, Processor Graphics Unit, or LLC.",
        "CounterMask": "10",
        "EventCode": "0x80",
        "EventName": "UNC_ARB_TRK_OCCUPANCY.CYCLES_OVER_HALF_FULL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Cycles with at least one request outstanding is waiting for data return from memory controller. Account for coherent and non-coherent requests initiated by IA Cores, Processor Graphics Unit, or LLC.",
        "CounterMask": "1",
        "EventCode": "0x80",
        "EventName": "UNC_ARB_TRK_OCCUPANCY.CYCLES_WITH_ANY_REQUEST",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts the number of coherent and in-coherent requests initiated by IA cores, processor graphic units, or LLC.",
        "EventCode": "0x81",
        "EventName": "UNC_ARB_TRK_REQUESTS.ALL",
        "PerPkg": "1",
        "UMask": "0x1",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts the number of LLC evictions allocated.",
        "EventCode": "0x81",
        "EventName": "UNC_ARB_TRK_REQUESTS.EVICTIONS",
        "PerPkg": "1",
        "UMask": "0x80",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "Counts the number of allocated write entries, include full, partial, and LLC evictions.",
        "EventCode": "0x81",
        "EventName": "UNC_ARB_TRK_REQUESTS.WRITES",
        "PerPkg": "1",
        "UMask": "0x20",
        "Unit": "ARB"
    },
    {
        "BriefDescription": "This 48-bit fixed counter counts the UCLK cycles.",
        "EventCode": "0xff",
        "EventName": "UNC_CLOCK.SOCKET",
        "PerPkg": "1",
        "Unit": "ARB"
    }
]
